Madness
来自Big Physics
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wiktionary
From Middle English madnes, madnesse; equivalent to mad + -ness.
etymonline
madness (n.)
late 14c., "insanity, lunacy, dementia; rash or irrational conduct, headstrong passion, extreme folly," from mad (adj.) + -ness. Sense of "foolishness" is from early 15c.
